Why does a valuation calculator's multiple describe a deal instead of pricing one?

Type a revenue figure into an online valuation tool and a price appears in about a second. It is worth being precise about what just happened, because it is not what most people assume.

The tool did not examine your business. It applied a stored ratio to a number you supplied. Everything that determines what your business is actually worth, such as who your customers are, whether they would stay, whether the business runs without you, and what happens to the lease, was absent from the calculation because you were never asked about it.

That is not a flaw in one particular tool. It is what the format is.

What to take away

The shape of the machine

Nearly every valuation calculator, however it is presented, does the same thing: it takes an earnings or revenue figure and applies a ratio to it. The interface varies. The underlying operation does not.

Which means the ratio is the entire answer. Your input scales it, and the ratio decides everything else. So the only question worth asking about any calculator is where that ratio came from, and whether it has anything to do with your business.

Often the answer is that it is a stored average: an approximation drawn from some collection of past transactions in some category that your industry selection mapped onto. Professionals draw averages like this from closed-deal databases such as DealStats and BizComps, which record the price and terms of completed sales. A calculator usually does not say which database, if any, it used.

That summary may come from good data or bad, from completed sales or asking prices, which are very different, as reading a listing explains. It may come from an easy-credit period or a tight one, or reflect businesses far larger or smaller than yours. It may be a placeholder. From outside, you cannot tell, because the tool hides the one number driving the output.

A multiple is an output, not an input

Here is the confusion the format creates, and it is worth being blunt about it.

A buyer does not pick a multiple and compute a price. The sequence runs the other way. The buyer forms a view of future earnings under their ownership, and of how confident they are given what they find. They weigh funding costs and required return, then negotiate against whatever competition the seller has created. A price is agreed.

Only afterwards, often by an observer or a broker recording the deal, does someone divide that price by an earnings figure and record the quotient. That quotient is the multiple. It is a description of what happened, not a rule that produced it.

A hypothetical makes the arithmetic plain. Suppose a business sold for $400,000 and its SDE for the year was $200,000. The recorded multiple is 2.0 times SDE. That 2.0 describes one sale. It does not tell a new seller what their own business is worth.

Feeding a multiple back in as an input reverses the logic. It takes a summary of transactions whose specific circumstances have been discarded, and treats it as a mechanism.

The individual facts behind each price were exactly what mattered: a buyer with a strategic reason to overpay, a seller who had to complete by a date, a business with a signed long-term contract, a business whose owner was ill. Averaging removes that information.

This also explains why multiples quoted in general conversation are so unreliable a guide. When someone says businesses like yours "go for" a particular figure, they are quoting an average of outcomes whose causes have been stripped out. Your deal will be one specific point, and where it lands is decided by the things the average deleted.

Why a revenue-only calculator cannot answer at all

Some tools ask only for turnover. These are the weakest form, and the reason is easy to state.

Two businesses can report identical revenue and still differ sharply. One keeps a large share of that revenue as profit and collects from customers before paying suppliers, while the other keeps almost none and funds a long gap itself.

One spreads revenue across many accounts; the other keeps most of it in a few. One is run by managers; in the other, the owner holds every customer relationship.

These are not variations on a business. They are different assets with different values, and revenue cannot tell them apart. Revenue is a measure of activity. Value comes from what survives after every cost of producing that activity, and then from how durable the remainder is.

The inputs that actually move the number

The table below lists eleven inputs a buyer weighs. The point of the table is the right-hand column: notice how much of what determines value is invisible to any form you can fill in from your own keyboard.

The pattern holds: a calculator sees what is easy to type, while price depends on facts that require a diligence process.

Two businesses with the same inputs on the same form can transact at very different prices. The tool cannot warn you which one you are.

What calculators are genuinely useful for

None of this makes them worthless. It makes them narrow.

Testing whether your expectation is in the right region. If you have privately decided your business is worth a fortune and every tool returns something an order of magnitude lower, the tools may all be wrong, but you should find out why before you build a plan on your figure. A rough figure from a calculator is a useful first thing to bring to a business broker.

Seeing which levers matter. Used as a sensitivity analysis, a calculator that lets you vary the inputs shows how much a change in earnings moves the output compared with a change in revenue. That is a lesson about your business, not a valuation of it.

Starting a conversation with an adviser. Bringing a rough figure and asking "why is this wrong?" is a productive opening, provided you genuinely expect the answer to be that it is wrong.

What they cannot do is set your asking price, tell you whether an offer is fair, or substitute for someone examining your records. If a tool's output is being used to make an actual decision about actual money, it is being used past its design.

Questions to ask about any tool you use

That last question deserves weight. Some tools exist to generate enquiries for a service. A tool that produces a flattering figure and then invites you to speak to someone is performing a marketing function, and the number is part of the marketing.

If you need a number you can rely on

Then the route is not a form. It is a credentialed appraiser or a CPA. The Accredited Senior Appraiser (ASA) from the American Society of Appraisers, the Certified Valuation Analyst (CVA) from NACVA and the Accredited in Business Valuation (ABV) from the AICPA are the credentials to look for.

Such a professional examines your records, chooses an earnings measure for a realistic buyer, documents each adjustment and states the basis of value. A formal appraisal report follows USPAP, the Uniform Standards of Professional Appraisal Practice. A CPA's valuation engagement follows AICPA SSVS No. 1. If the figure is for tax, IRS Revenue Ruling 59-60 sets the factors the IRS considers when valuing closely held stock.

That costs money and takes time, but for a deal this size it is proportionate, alongside an accountant and a lawyer.

For how the underlying reasoning works, see the valuation methods article and what each family of method claims.

For the work that changes the answer rather than measuring it, see seller preparation.

Use the calculator for ten seconds of orientation. Then close it, because the interesting questions all begin where it stops.

Common questions

Is any online valuation tool worth using?

For ten seconds of orientation, and only if it shows the ratio it applied and says which earnings figure it expects. Most show neither.

Why do two tools give me very different answers?

Because each applied a different stored ratio to the same input. The gap between them measures how little either knows about your business.

Can I use the output to set an asking price?

No. An asking price should come from an earnings figure built on your records and from what comparable businesses have actually sold for.

What should I do with the number I got?

Write it down, note what the form never asked you, and take both to an accountant. The list of missing questions is more useful than the figure.